CN113430525A - Fuel cell engine and heat exchanger anti-corrosion system thereof - Google Patents
Fuel cell engine and heat exchanger anti-corrosion system thereof Download PDFInfo
- Publication number
- CN113430525A CN113430525A CN202110779456.2A CN202110779456A CN113430525A CN 113430525 A CN113430525 A CN 113430525A CN 202110779456 A CN202110779456 A CN 202110779456A CN 113430525 A CN113430525 A CN 113430525A
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- CN
- China
- Prior art keywords
- fuel cell
- heat exchanger
- cell engine
- shell
- engine
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000000446 fuel Substances 0.000 title claims abstract description 71
- 238000005260 corrosion Methods 0.000 title claims abstract description 22
- 238000005536 corrosion prevention Methods 0.000 claims description 13
- 230000007797 corrosion Effects 0.000 claims description 11
- 238000004146 energy storage Methods 0.000 claims description 10
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 3
- 239000003990 capacitor Substances 0.000 claims description 3
- 239000000295 fuel oil Substances 0.000 claims description 3
- 239000011701 zinc Substances 0.000 claims description 3
- 229910052725 zinc Inorganic materials 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 5
- 238000012423 maintenance Methods 0.000 abstract description 4
- 239000002699 waste material Substances 0.000 abstract description 2
- 238000001816 cooling Methods 0.000 description 3
- 239000013535 sea water Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F13/00—Inhibiting corrosion of metals by anodic or cathodic protection
- C23F13/02—Inhibiting corrosion of metals by anodic or cathodic protection cathodic; Selection of conditions, parameters or procedures for cathodic protection, e.g. of electrical conditions
- C23F13/06—Constructional parts, or assemblies of cathodic-protection apparatus
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F19/00—Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers
- F28F19/004—Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers by using protective electric currents, voltages, cathodes, anodes, electric short-circuits
Abstract
The invention relates to a fuel cell engine and a heat exchanger anticorrosion system thereof, wherein the anticorrosion system comprises a heat exchanger, a shell of the heat exchanger is connected with a negative electrode end of a discharge circuit of a fuel cell stack of the fuel cell engine, a positive electrode end of the discharge circuit of the fuel cell stack of the fuel cell engine is grounded, and an auxiliary anode is arranged on the shell of the heat exchanger; the scheme is characterized in that the shell of the heat exchanger is connected into the bleeder circuit, the bleeder resistor is replaced, the current in the bleeder circuit is applied to the shell of the heat exchanger to form a cathode protection method of impressed current, compared with the cathode protection method of a sacrificial anode in the prior art, the electric energy in the bleeder circuit is utilized, the waste of the electric energy is avoided, the energy utilization rate and the efficiency of a fuel cell engine are improved, the consumption of the auxiliary anode is reduced, the anti-corrosion system can be used for arranging the auxiliary anode outside the heat exchanger, the observation, the replacement and the maintenance frequency are convenient, and the use cost is reduced.
Description
Technical Field
The invention relates to the technical field of fuel cell engines, in particular to a fuel cell engine and a heat exchanger anti-corrosion system thereof.
Background
The fuel cell engine is used for a ship engine, generally, a cooling system uses a sea water pump to pump river water or sea water into a heat exchanger to cool the cooling system, and does not use a fan for cooling, which easily causes corrosion of the heat exchanger.
Disclosure of Invention
A first object of the present invention is to provide a heat exchanger corrosion prevention system for a fuel cell engine, which can protect a heat exchanger from corrosion, reduce the number of times of maintenance of a corrosion prevention structure, and reduce the cost of use.
A second object of the present invention is to provide a fuel cell engine based on the above-described corrosion prevention system for a heat exchanger of a fuel cell engine.
In order to achieve the purpose, the invention provides the following technical scheme:
the shell of the heat exchanger is connected with the negative end of a discharge circuit of a fuel cell stack of the fuel cell engine, the positive end of the discharge circuit of the fuel cell stack of the fuel cell engine is grounded, and the shell of the heat exchanger is provided with an auxiliary anode.
Preferably, an energy storage element is connected between the shell of the heat exchanger and the negative end of the bleeder circuit.
Preferably, the energy storage element comprises an energy storage capacitor.
Preferably, the auxiliary anode is detachably provided to an outer wall of a housing of the heat exchanger.
Preferably, the auxiliary anode is a zinc block.
Preferably, the housing of the heat exchanger includes an outer shell and an inner shell, and the negative end of the bleed circuit of the fuel cell stack of the fuel cell engine is connected to the inner shell of the heat exchanger.
A fuel cell engine comprising a fuel cell engine heat exchanger corrosion protection system as claimed in any one of the preceding claims.
Preferably, the fuel cell engine is a marine fuel cell engine.
According to the technical scheme, the invention discloses a heat exchanger corrosion prevention system of a fuel cell engine, which comprises a heat exchanger, wherein a shell of the heat exchanger is connected with a negative electrode end of a discharge circuit of a fuel cell stack of the fuel cell engine, a positive electrode end of the discharge circuit of the fuel cell stack of the fuel cell engine is grounded, and an auxiliary anode is arranged on the shell of the heat exchanger; it can be understood that, in the prior art, the current in the bleeder circuit is dissipated by the bleeder resistor to generate heat, and the scheme connects the shell of the heat exchanger into the bleeder circuit, replaces the bleeder resistor, and applies the current in the bleeder circuit to the shell of the heat exchanger to form a cathode protection method of impressed current.
The invention also provides a fuel cell engine based on the heat exchanger corrosion prevention system of the fuel cell engine, and the fuel cell engine adopts the heat exchanger corrosion prevention system of the fuel cell engine, so the fuel cell engine has the beneficial effects of the heat exchanger corrosion prevention system of the fuel cell engine, and the details are not repeated.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a corrosion prevention system for a heat exchanger of a fuel cell engine according to an embodiment of the present invention.
Wherein:
1 is a heat exchanger; 2 is the negative end of the bleeder circuit; 3 is the positive terminal of the bleeder circuit; and 4, an auxiliary anode.
Detailed Description
The invention provides an anti-corrosion system of a heat exchanger of a fuel cell engine, which is used for carrying out anti-corrosion protection on the heat exchanger, reducing the maintenance times of an anti-corrosion structure and reducing the use cost.
The other core of the invention is to provide a fuel cell engine based on the anti-corrosion system of the heat exchanger of the fuel cell engine.
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, fig. 1 is a schematic structural diagram of a corrosion prevention system for a heat exchanger of a fuel cell engine according to an embodiment of the present invention.
The embodiment of the invention discloses a heat exchanger corrosion prevention system of a fuel cell engine, which comprises a heat exchanger 1, wherein a shell of the heat exchanger 1 is connected with a negative electrode end 2 of a discharge circuit of a fuel cell stack of the fuel cell engine, a positive electrode end 3 of the discharge circuit of the fuel cell stack of the fuel cell engine is grounded, and an auxiliary anode 4 is arranged on the shell of the heat exchanger 1.
Compared with the prior art, the anti-corrosion system of the heat exchanger of the fuel cell engine provided by the embodiment of the invention has the advantages that the shell of the heat exchanger 1 is connected into the bleeder circuit, the bleeder resistor is replaced, and the current in the bleeder circuit is applied to the shell of the heat exchanger 1 to form a cathode protection method of impressed current, compared with the cathode protection method of the sacrificial anode in the prior art, the anti-corrosion system not only utilizes the electric energy in the bleeder circuit, avoids the waste of the electric energy, improves the energy utilization rate and the efficiency of the fuel cell engine, but also reduces the consumption of the auxiliary anode 4, and the auxiliary anode 4 can be arranged outside the heat exchanger 1, so that the anti-corrosion system is convenient to observe and replace, has less maintenance times and is beneficial to reducing the use cost.
Preferably, in the embodiment of the present invention, an energy storage element is connected between the housing of the heat exchanger 1 and the negative terminal 2 of the bleeder circuit, and the energy storage element is used for storing energy during discharging of the bleeder circuit, so that discharging can be continued for a preset time, such as half an hour, after the electric shutdown of the fuel cell engine, so as to better protect the heat exchanger 1 from external current in the half hour of the shutdown in which the heat exchanger 1 is most susceptible to corrosion.
Specifically, as shown in fig. 1, the energy storage element includes an energy storage capacitor.
Preferably, in the embodiment of the present invention, the auxiliary anode 4 is detachably disposed on the outer wall of the casing of the heat exchanger 1, so as to facilitate replacement of the auxiliary anode 4, but in other embodiments, the auxiliary anode 4 may also be welded to the outer wall of the casing of the heat exchanger 1.
In practical applications, the surface of the auxiliary anode 4 that is attached to the heat exchanger 1 may be designed to conform to the shape of the outer wall of the casing of the heat exchanger 1, so as to be better attached to the surface of the heat exchanger 1.
Specifically, in the embodiment of the present invention, the auxiliary anode 4 is a zinc block.
Preferably, the casing of the heat exchanger 1 includes an outer casing and an inner casing, and external water such as seawater and river water generally passes through the inner casing of the heat exchanger 1, so in order to improve the corrosion protection effect, in the embodiment of the present invention, the negative electrode terminal 2 of the bleed circuit of the fuel cell stack of the fuel cell engine is connected to the inner casing of the heat exchanger 1.
The embodiment of the invention also provides a fuel cell engine, which comprises the corrosion prevention system for the heat exchanger of the fuel cell engine according to the embodiment, and as the fuel cell engine adopts the corrosion prevention system for the heat exchanger of the fuel cell engine, the technical effect of the fuel cell engine refers to the embodiment.
Further, in an embodiment of the present invention, the fuel cell engine is a marine fuel cell engine.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (8)
1. The corrosion prevention system for the heat exchanger of the fuel cell engine comprises the heat exchanger, and is characterized in that a shell of the heat exchanger is connected with a negative end of a discharge circuit of a fuel cell stack of the fuel cell engine, a positive end of the discharge circuit of the fuel cell stack of the fuel cell engine is grounded, and an auxiliary anode is arranged on the shell of the heat exchanger.
2. The fuel cell engine heat exchanger corrosion protection system of claim 1, wherein an energy storage element is connected between the housing of said heat exchanger and the negative end of said bleeder circuit.
3. The fuel cell engine heat exchanger corrosion protection system of claim 2, wherein said energy storage element comprises an energy storage capacitor.
4. The fuel cell engine heat exchanger corrosion protection system of any one of claims 1 to 3, wherein said auxiliary anode is removably disposed on an outer wall of a housing of said heat exchanger.
5. The fuel cell engine heat exchanger corrosion protection system of any one of claims 1-3, wherein said auxiliary anode is a zinc block.
6. The fuel cell engine heat exchanger corrosion protection system of any one of claims 1 to 3, wherein the housing of the heat exchanger comprises an outer shell and an inner shell, and the negative end of the bleed circuit of the fuel cell stack of the fuel cell engine is connected to the inner shell of the heat exchanger.
7. A fuel cell engine comprising a fuel cell engine heat exchanger corrosion protection system according to any one of claims 1 to 6.
8. The fuel cell engine of claim 7, wherein the fuel cell engine is a marine fuel cell engine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110779456.2A CN113430525A (en) | 2021-07-09 | 2021-07-09 | Fuel cell engine and heat exchanger anti-corrosion system thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110779456.2A CN113430525A (en) | 2021-07-09 | 2021-07-09 | Fuel cell engine and heat exchanger anti-corrosion system thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113430525A true CN113430525A (en) | 2021-09-24 |
Family
ID=77759863
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110779456.2A Pending CN113430525A (en) | 2021-07-09 | 2021-07-09 | Fuel cell engine and heat exchanger anti-corrosion system thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113430525A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090138148A1 (en) * | 2007-11-28 | 2009-05-28 | Caterpillar Inc. | Corrosion protection system |
| JP2016091646A (en) * | 2014-10-30 | 2016-05-23 | アイシン精機株式会社 | Fuel cell system |
| WO2017072177A1 (en) * | 2015-10-29 | 2017-05-04 | Danfoss A/S | Cathodic protection of a heat exchanger |
| CN209896902U (en) * | 2019-06-30 | 2020-01-03 | 潍柴动力股份有限公司 | Electricity storage release device |
| CN210723238U (en) * | 2019-09-18 | 2020-06-09 | 深圳市福瑞电气有限公司 | Rapid discharge circuit for residual electric quantity of fuel cell stack |
-
2021
- 2021-07-09 CN CN202110779456.2A patent/CN113430525A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090138148A1 (en) * | 2007-11-28 | 2009-05-28 | Caterpillar Inc. | Corrosion protection system |
| JP2016091646A (en) * | 2014-10-30 | 2016-05-23 | アイシン精機株式会社 | Fuel cell system |
| WO2017072177A1 (en) * | 2015-10-29 | 2017-05-04 | Danfoss A/S | Cathodic protection of a heat exchanger |
| CN209896902U (en) * | 2019-06-30 | 2020-01-03 | 潍柴动力股份有限公司 | Electricity storage release device |
| CN210723238U (en) * | 2019-09-18 | 2020-06-09 | 深圳市福瑞电气有限公司 | Rapid discharge circuit for residual electric quantity of fuel cell stack |
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| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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Application publication date: 20210924 |